摘要
为了探讨热带地区水稻非结构性物质的积累及其再转移特性,深入了解热带地区水稻产量的形成特点,以种植于海南的7个水稻品种为材料,研究抽穗期茎叶部非结构性物质积累量、含量及其抽穗后0-14 d在遮光条件下向穗部再转移速度的差异性。结果表明:茎叶部非结构性物质积累量为314.7-553.85 g/m2,不同品种间差异显著,杂交稻大于常规稻,杂交稻中籼型大于粳型;茎叶部非结构性物质再转移速度为9.45-21.75 g/(d.m2),不同品种间差异显著,籼型杂交稻大于粳型杂交稻和常规稻;茎叶部非结构性物质含量为44.51%-51.48%,不同品种间差异显著,并且非结构性物质含量对非结构性物质积累量呈显著的正效应;茎叶部非结构性物质积累量和含量较高的品种具有稳产和高产潜力。
In order to research the yield formation of rice in tropical region, the non-structural matter accumulation and translocation rate of rice were investigated. Using 7 different rice varieties planted in Hainan as the materials, the difference of the non-structural matter accumulation and content in the heading stage and the translocation rate of the non-structural matter from stem to panicle in 14 days after the heading stage in shade conditions were studied. The results indicated that the non-structural matter accumulation was from 314.7 g/m^2 to 553.85 g/m^2; there were significant differences in different varieties; that for hybrid rice was higher than that for inbred rice, and that for indiea hybrid rice was higher than that for japonica hybrid rice. The translocation rate of the non-structural matter was from 9.45 g/（d·m^2） to 21.75 g/（d·m^2）; there were significant differences in different varieties, and that for indica hybrid rice was higher than that for japonica hybrid rice and inbred rice. The non-structural matter content was from 44.51% to 51.48%; there were differences in different varieties; the non- structural matter accumulation responded to the non-structural matter content. Rice which wtth high non-structural matter accumulation and content had the potential of stable yield and high yield.
出处
《热带作物学报》
CSCD
北大核心
2013年第6期1128-1132,共5页
Chinese Journal of Tropical Crops
基金
人事部留学人员科技活动项目择优资助(国人部发[2006]164)
教育部留学回国人员科研启动基金(教外司留[2008]890)项目
海南省作物栽培学与耕作学重点学科资助(lhxm-2012-6)
关键词
水稻
非结构性物质积累量
非结构性物质含量
再转移速度
Rice
Non-structural matter accumulation
Non-structural matter content
Translocation rate
作者简介
辛阳（1987年-），男，在读硕士；研究方向：作物栽培。
通讯作者：杨重法，E-mail：y-hn@163．com。
